An autism advocate who joined the Ford government last year to help develop better autism policies has quit, citing a "terrible mistake" in the province's new plans for autism funding.

Until last summer Bruce McIntosh was the president of the Ontario Autism Coalition, and one of the voices behind the successful campaign to force the previous Liberal government to overhaul it's autism treatment programs and funding.

McIntosh joined the Progressive Conservative government as the legislative assistant to Tory MPP and Parliamentary Assistant for Children and Autism Amy Fee.

On Wednesday he quit in frustration just as the government announced its overhaul of autism program funding.